Laparoscopic Surgery VS Laparoscopic Surgery + Neoadjuvant Chemotherapy for T4 Tumor of the Colon Cancer

Inclusion Criteria: * Able to provide written informed consent * Histologically confirmed diagnosis of colon carcinoma * CT or MRI verified as T4 colon cancer without involvement of other organs. * Without multiple lesions other than carcinoma in situ * Tumor size \< 8 cm * No bowel obstruction * Sufficient organ function * No history of gastrointestinal surgery * 18 years of age or older * Performance Status (ECOG) 0, 1 or 2, life expectancy \> 12 weeks * Operable patients * Completion of neoadjuvant systemic chemotherapy Exclusion Criteria: * Women who are pregnant (confirmed by serum b-HCG in women of reproductive age) or breast feeding * No intention to finish neoadjuvantive systemic therapy * Unstable or uncompensated respiratory or cardiac disease * Serious active infections * Hypersensitivity to capecitabine/fluorouracil or oxaliplatin * Stomatitis or ulceration in the mouth or gastrointestinal tract * Severe diarrhea * Peripheral sensory neuropathy with functional impairment